Rl. Squires et Gl. Kennedy, ADDITIONS TO THE LATE PALEOCENE MOLLUSCAN FAUNA FROM THE SANTA-MONICAMOUNTAINS, LOS-ANGELES-COUNTY, SOUTHERN CALIFORNIA, The Veliger, 41(2), 1998, pp. 157-171
Several previously unreported shallow-marine, warm-water gastropods an
d bivalves from the upper part of the Santa Susana Formation, east-cen
tral Santa Monica Mountains, Los Angeles County, southern California,
are described and discussed. The gastropods are Diodora sp. nov.? (Fis
surellidae) and Terebralia susana sp. nov. (Potamididae). The bivalves
are Solena (Eosolen) stantoni (Weaver, 1905) (Solenidae), Martesia sp
. (Pholadidae), and Nototeredo(?) sp. (Teredinidae). These mollusks ar
e of late Paleocene (Thanetian Stage) age. For the Pacific Coast of No
rth America, the specimens of Diodora and Martesia represent the earli
est records, the specimens of Terebralia the first confirmed record, a
nd the specimens of Nototeredo(?) the first record. The specimens of S
olena (Eosolen) stantoni are the best preserved and largest of this sp
ecies.